CN110497639B - Viscosity control process for tire crown strip - Google Patents
Viscosity control process for tire crown strip Download PDFInfo
- Publication number
- CN110497639B CN110497639B CN201910640303.2A CN201910640303A CN110497639B CN 110497639 B CN110497639 B CN 110497639B CN 201910640303 A CN201910640303 A CN 201910640303A CN 110497639 B CN110497639 B CN 110497639B
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- Prior art keywords
- crown
- water tank
- crown band
- wide
- belt
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000008569 process Effects 0.000 title claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 238000001035 drying Methods 0.000 claims abstract description 20
- 238000005520 cutting process Methods 0.000 claims abstract description 12
- 238000007664 blowing Methods 0.000 claims abstract description 10
- 239000011248 coating agent Substances 0.000 claims abstract description 8
- 238000000576 coating method Methods 0.000 claims abstract description 8
- 238000010030 laminating Methods 0.000 claims abstract description 8
- 239000007864 aqueous solution Substances 0.000 claims abstract description 7
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 7
- 238000004804 winding Methods 0.000 claims abstract description 5
- 238000004140 cleaning Methods 0.000 claims abstract description 4
- 238000002791 soaking Methods 0.000 claims abstract description 3
- 238000007654 immersion Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000007619 statistical method Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/20—Cleaning of moving articles, e.g. of moving webs or of objects on a conveyor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/12—Brushes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/38—Textile inserts, e.g. cord or canvas layers, for tyres; Treatment of inserts prior to building the tyre
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/38—Textile inserts, e.g. cord or canvas layers, for tyres; Treatment of inserts prior to building the tyre
- B29D30/40—Chemical pretreatment of textile inserts before building the tyre
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/38—Textile inserts, e.g. cord or canvas layers, for tyres; Treatment of inserts prior to building the tyre
- B29D30/44—Stretching or treating the layers before application on the drum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/38—Textile inserts, e.g. cord or canvas layers, for tyres; Treatment of inserts prior to building the tyre
- B29D30/46—Cutting textile inserts to required shape
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Tyre Moulding (AREA)
Abstract
The invention relates to a viscosity control process of a tire crown strip, which comprises the following steps: (1) soaking a separant: completely immersing the cut wide crown belt into a water tank containing a rubber separant aqueous solution, stretching the wide crown belt after the water tank is discharged out by a sponge roller, removing the rubber separant on the surface of the wide crown belt by an air blowing device, drying the surface of the wide crown belt by a drying device, and standing for later use; (2) and (3) cutting: cutting the dried wide crown band to obtain a standby crown band strip with a proper size, and coiling; (3) coating a release agent: the cut crown band strips are guided out and then enter a circulating water tank, pass through a plurality of groups of roller ways arranged in the circulating water tank, an upper group of hairbrushes and a lower group of hairbrushes arranged in the circulating water tank are used for cleaning rubber separants on the front surface and the back surface of the crown band strips, the back crown band strips sequentially pass through a blowing device and a drying device, the dried crown band strips are transmitted to a laminating drum of a forming machine through the roller ways, and the winding and laminating of the crown band strips of the forming green tire process are completed.
Description
Technical Field
The invention relates to a viscosity control process of a tire crown strip, and belongs to the technical field of tire production.
Background
With the development of the tire manufacturing industry, various new equipment, new technology and new material are introduced into the tire manufacturing process, but the management of the viscosity of the crown band strip in the tire production process is always in an out-of-control state, and the viscosity of the crown band strip changes along with the change of a series of influence factors such as seasons, raw materials, temperature and humidity, storage time and the like, so that a great amount of framework material waste and batch quality problems are caused.
The existing production process has no effective prevention mechanism, generally, the formula is adjusted or the process conditions are adjusted after problems occur, individual factories are provided with equipment for detecting the viscosity of the crown band strips for detecting the viscosity of products after rolling, and in addition, when the crown band strips are cut, the surfaces of the wide crown bands are treated by adopting vertically arranged steel wire brushes so as to reduce the viscosity in the winding process after cutting.
Therefore, the existing solutions are all carried out after the crown band is rolled, the hysteresis is obvious, the controllability of the viscosity is extremely poor, even if a single factory is provided with equipment for detecting the viscosity of the crown band, the data statistical analysis after production is limited, the guiding significance of the viscosity control in the production process is not great, the correction and management on the defects after the rolling cannot be carried out, the surfaces of the crown bands are treated by using a steel wire brush during the cutting, although the adhesion can be reduced to a certain degree, the effect is general, and the effect cannot be basically exerted on the crown bands with large viscosity.
Disclosure of Invention
The invention provides a tire crown strip viscosity control process aiming at the current situation that no effective crown strip viscosity control mechanism exists in the existing tire production process.
The technical scheme for solving the technical problems is as follows:
a process for controlling the tackiness of a crown tape of a tire, comprising the steps of:
(1) soaking a separant: completely immersing the cut wide crown belt into a water tank containing a rubber separant aqueous solution, stretching the wide crown belt after the water tank is discharged out by a sponge roller, removing the rubber separant on the surface of the wide crown belt by an air blowing device, drying the surface of the wide crown belt by a drying device, and standing for later use;
(2) and (3) cutting: cutting the wide crown band dried in the step (1) to obtain a standby crown band strip with a proper size, and coiling;
(3) coating a release agent: and (3) guiding the crown band strips cut in the step (2) out, sending the crown band strips into a circulating water tank, penetrating through a plurality of groups of roller ways arranged in the circulating water tank, cleaning the rubber separants on the front and back surfaces of the crown band strips by an upper group of hairbrushes and a lower group of hairbrushes arranged in the circulating water tank, sequentially passing the rear crown band strips through a blowing device and a drying device, and transmitting the dried crown band strips to a forming machine laminating drum through the roller ways to finish the winding and laminating of the crown band strips of the forming green tire process.
On the basis of the technical scheme, the invention can be further improved as follows.
Further, the concentration of the rubber separant in the aqueous solution in the step (1) is 3-8 wt%.
Further, the immersion time of the wide crown belt in the water tank in the step (1) is 5-20 s.
Further, the temperature of the drying device in the step (1) is 70-90 ℃.
Further, the temperature of the drying device in the step (3) is 90-110 ℃.
The rubber release agent used in the invention is a mature commodity available on the market, and can be a product produced by any manufacturer.
The process has the beneficial effects that:
1) the rubber release agent coating can ensure that the problem of adhesion is not generated when the cap strip is cut, and the surface coating is removed in a water immersion and scraping and brushing mode when the cap strip is formed and used, so that the original viscosity of the cap strip is recovered, and the adhesive force required by forming is ensured.
2) The process can ensure reasonable and uniform viscosity of the cap strip used each time, improve production efficiency, reduce cost loss and reduce waste and defective products caused by poor viscosity. Through field measurement and calculation, by adopting the crown band strip viscosity control process, 95% of waste materials of the crown band strip can be reduced, and the production efficiency of crown band strip cutting is improved by 40%.
Drawings
FIG. 1 is a schematic process flow diagram of step (1);
FIG. 2 is a process flow diagram of step (3);
in fig. 1 and 2, 1, a wide crown band; 2. a water tank; 3. a sponge roller; 4. a blowing device; 5. a drying device; 6. a crown band; 7. a circulating water tank; 8. a roller bed; 9. a brush;
Detailed Description
The principles and features of this invention are described below in conjunction with examples, which are set forth to illustrate, but are not to be construed to limit the scope of the invention.
The 1260D/2NL66 crown band strip frequently used in the tire industry is divided into 8 wide crown bands with the width of 1450mm at a time, the 8 wide crown bands are rolled into large rolls with the width of 1450mm, the large rolls are divided into 8 wide crown bands with the width of 180mm, and the edges on two sides are respectively trimmed by 5 mm. The crown band width is 15mm, 12 crown band coiling stations are taken as examples, and the description of the embodiment is carried out:
(1) parting agent for cutting wide crown belt and dipping rubber
As shown in figure 1, after being cut, a wide crown belt 1 is completely immersed into a water tank 2 containing a rubber separant aqueous solution, the concentration of the rubber separant in the aqueous solution is 3-8 wt%, the immersion time is 5-20 s, after the water is discharged from the water tank, the rubber separant on the surface is removed through an upper blowing device 4 and a lower blowing device 4 after passing through an upper sponge roller 3 and a lower sponge roller 3 with the diameter of 200mm, the surface is dried through a set of heating and drying device 5, the drying temperature is generally 70-90 ℃, the drying device works in the normal operation process of equipment, and the heating is stopped when the operation is stopped, so that the quality problem of the cord fabric is avoided.
(2) Crown band dividing and cutting
The wide crown tape having a width of 180mm was cut into 12 crown tape strips 6 having a width of 15mm and wound up.
(3) De-coating
The method comprises the steps of standing the soaked and dried wide crown band for 2 hours, then cutting the crown band, normally installing and unwinding the cut 15mm crown band material roll on a forming machine, passing the wound crown band through a circulating water tank 7, cleaning the front side and the back side of two groups of palm fiber hairbrushes 9 when the crown band passes through roller ways 8 from the circulating water tank, removing the rubber separant coating covered on the surface of the crown band and enabling the crown band to recover good viscosity, sequentially passing the crown band after the surface coating is removed through two groups of blowing devices and drying devices, wherein the drying temperature is generally 90-110 ℃, the drying devices work in the normal operation process of equipment, stop heating when the operation stops, and avoid the problem of glue ripeness caused by long-time heating, and the dried crown band is transferred to a forming machine laminating drum through the roller ways to complete the winding and laminating of the crown band of the forming green tire process.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (5)
1. A process for controlling the tackiness of a crown strip of a tyre, characterized in that it comprises the following steps:
(1) soaking a separant: completely immersing the cut wide crown belt into a water tank containing a rubber separant aqueous solution, stretching the wide crown belt after the water tank is discharged out by a sponge roller, removing the rubber separant on the surface of the wide crown belt by an air blowing device, drying the surface of the wide crown belt by a drying device, and standing for later use;
(2) and (3) cutting: cutting the wide crown band dried in the step (1) to obtain a standby crown band strip with a proper size, and coiling;
(3) coating a release agent: and (3) guiding the crown band strips cut in the step (2) out, sending the crown band strips into a circulating water tank, penetrating through a plurality of groups of roller ways arranged in the circulating water tank, cleaning the rubber separants on the front and back surfaces of the crown band strips by an upper group of hairbrushes and a lower group of hairbrushes arranged in the circulating water tank, sequentially passing the rear crown band strips through a blowing device and a drying device, and transmitting the dried crown band strips to a forming machine laminating drum through the roller ways to finish the winding and laminating of the crown band strips of the forming green tire process.
2. The viscosity control process according to claim 1, wherein the concentration of the rubber release agent in the aqueous solution of step (1) is 3 to 8 wt%.
3. The viscosity control process according to claim 1 or 2, wherein the immersion time of the broad crown tape in the water tank in the step (1) is 5 to 20 s.
4. The viscosity control process according to claim 3, wherein the temperature of the drying device in the step (1) is 70 to 90 ℃.
5. The viscosity control process according to claim 3, wherein the temperature of the drying device in the step (3) is 90 to 110 ℃.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910640303.2A CN110497639B (en) | 2019-07-16 | 2019-07-16 | Viscosity control process for tire crown strip |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910640303.2A CN110497639B (en) | 2019-07-16 | 2019-07-16 | Viscosity control process for tire crown strip |
Publications (2)
Publication Number | Publication Date |
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CN110497639A CN110497639A (en) | 2019-11-26 |
CN110497639B true CN110497639B (en) | 2021-05-25 |
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CN201910640303.2A Active CN110497639B (en) | 2019-07-16 | 2019-07-16 | Viscosity control process for tire crown strip |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20050012439A (en) * | 2003-07-25 | 2005-02-02 | 주식회사 효성 | Process for preparing lyocell tire cord for passenger tire-cap ply |
CN103625219A (en) * | 2013-11-07 | 2014-03-12 | 浙江准提实业有限公司 | Manufacturing method of radial tire cap ply |
CN107745534A (en) * | 2017-11-22 | 2018-03-02 | 正新橡胶(中国)有限公司 | A kind of band cord banding machine and its tape coil diameter detection device |
CN107869065A (en) * | 2017-05-08 | 2018-04-03 | 青岛康威化纤有限公司 | Use string of a hat curtain cloth production technology |
CN109835118A (en) * | 2017-11-29 | 2019-06-04 | 锦湖轮胎株式会社 | Thin layer band and the low weight tire for using the thin layer band |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050048280A1 (en) * | 2003-08-29 | 2005-03-03 | Stamper Rodney Gene | Apparatus and process for making a tape useful as a tire cap ply |
-
2019
- 2019-07-16 CN CN201910640303.2A patent/CN110497639B/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20050012439A (en) * | 2003-07-25 | 2005-02-02 | 주식회사 효성 | Process for preparing lyocell tire cord for passenger tire-cap ply |
CN103625219A (en) * | 2013-11-07 | 2014-03-12 | 浙江准提实业有限公司 | Manufacturing method of radial tire cap ply |
CN107869065A (en) * | 2017-05-08 | 2018-04-03 | 青岛康威化纤有限公司 | Use string of a hat curtain cloth production technology |
CN107745534A (en) * | 2017-11-22 | 2018-03-02 | 正新橡胶(中国)有限公司 | A kind of band cord banding machine and its tape coil diameter detection device |
CN109835118A (en) * | 2017-11-29 | 2019-06-04 | 锦湖轮胎株式会社 | Thin layer band and the low weight tire for using the thin layer band |
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CN110497639A (en) | 2019-11-26 |
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